Structural aspects of the phase transitions in (BEDO-TTF)2ReO4•H2O

被引：7

作者：

Khasanov, SS ^{[1
]}

Zorina, LV

Shibaeva, RP

Kushch, ND

Yagubskii, EB

Rousseau, R

Canadell, E

Barrans, Y

Gaultier, J

Chasseau, D

机构：

[1] Russian Acad Sci, Inst Solid State Phys, Chernogolovka 142432, MD, Russia

[2] Russian Acad Sci, Inst Chem Phys Res, Chernogolovka 142432, MD, Russia

[3] CSIC, Inst Ciencia Mat Barcelona, E-08193 Barcelona, Spain

[4] Inst Chim Mat Condensee Bordeaux, UPR 9048, CNRS, Lab Sci Mol, F-33608 Pessac, France

来源：

SYNTHETIC METALS | 1999年 / 103卷 / 1-3期

基金：

俄罗斯基础研究基金会;

关键词：

X-ray diffraction; organic superconductors; structural phase transitions;

D O I：

10.1016/S0379-6779(98)00255-0

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

The effect of the first-order phase transition occurring around 220K on the crystal and electronic structure of the molecular superconductor (BEDO-TTF)(2)ReO4. H2O has been studied. The crystal structure at 170K has been determined and it is found that the main structural change resulting from the phase transition is connected with a rotation of the ReO4- anions. This rotation leads to changes in the S .... S and S ... O intermolecular contacts within the BEDO-TTF donor layers, nevertheless the band structure is remained practically unchanged Possible changes in the crystal structure which can occur at room temperature depending on the experimental conditions are considered. It seems very likely that the (BEDO-TTF)(2)ReO4. H2O crystal loses its water molecules in the vacuum and hence changes its crystal structure.

引用

页码：1853 / 1856

页数：4

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